JP2005147524A - Tabletop stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tabletop stove using a charcoal fire, tasteful without incongruity and capable of imparting a dignified feeling even if incorporating it in a course of dainty and refined Japanese dishes of an inn, a first-class Japanese restaurant or the like to use it for grilling or pot cooking for one or two persons. <P>SOLUTION: In this tabletop stove, a container of a box shape, a bowl shape or the like is formed of a stone processed object or ceramics, and a part or all of the inner wall face of the container, and the bottom are covered with an ash layer. The ash layer is formed by filling ash between the inner wall face and wire netting circumferentially provided along the inner side of the inner wall face. Thereby, a heat insulation property of the wall face can be improved. By covering an fire-extinguishing lid of the same material as the container, an unnecessary charcoal fire can be rapidly and certainly extinguished. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a stone-processed product or a ceramic tabletop stove that is used to perform cooking such as grilling such as barbecue or boiling water, and hand cooking on a table simply and safely.

  One of the tabletop stoves is a ceramic miniature folding stove that uses paraffin solid fuel. This is a type of food that heats a full-fledged dish, and is widely used in inns and restaurants. However, the amount of heat is limited, and it can only be used for small-scale cooking such as tofu. Small gas stoves that use gas cylinders are also widely used in pot dishes. However, it is not suitable for grilled fish and so on, and it is too rusty to use in kaiseki cuisine. As for what can be grilled and boiled, and can be used in kaiseki cuisine, it seems most appropriate to use a charcoal fire with a specially designed container.

  Therefore, the present inventor aimed to develop a tabletop stove that uses charcoal fire with a processed stone product, as it can be easily used at home as well as in a ryokan or a restaurant. Stone furnaces that use processed stone products include an invention (Japanese Patent Laid-Open No. 2002-184205) in which the heel part of the stone lantern is made hollow and the firewood is burned therein, and seven wheels in a recess provided on a natural stone table There is an invention (Japanese Patent Laid-Open No. 2003-180532) in which a combustor such as the above is housed. On the other hand, the invention of Japanese Patent Laid-Open No. 2001-272038 is not a processed stone product, but has been developed based on an idea that is very similar to the tabletop stove of the present invention.

JP 2002-184205 A JP 2003-180532 A JP 2001-272038 A

  Of these conventional techniques, the former two are large and cannot be placed on a table. On the other hand, the latter relates to a charcoal-burning stove, a cylindrical container body with an open top, a heat insulating layer provided inside, and an air intake at the bottom of the side, an ignition means, a combustion table, and an upper part of the cylindrical container And a lid that hermetically seals, uses charcoal as fuel, and uses solid fuel as ignition means. Therefore, it is said that the charcoal is characterized in that it can be ignited and digested reliably, easily and compactly. And the container main body should just form a heat insulation layer in an inner wall surface, and can store water in a bottom part, and charcoal is combusted on the combustion stand supported in the container main body.

  However, this charcoal stove has no idea of using ash. In other words, braziers and firewoods that have been widely used in the past have made extensive use of the compatibility of ash and charcoal fire, such as using the heat retaining effect of ash on charcoal and adjusting the thermal power depending on the amount of ash covered.

  Therefore, the present inventor has actively used the compatibility of ash and charcoal fire, and has come to think of using a stone processed product that is heavy but elegant compared to a metal one as a container for a tabletop stove. The present invention has been completed. And this invention is characterized by using an ash layer as a heat insulating material of the inner wall surface and bottom of the container.

  The tabletop stove of the present invention is formed by forming a container such as a box shape or a bowl shape with a processed stone product, and covering part or all of the inner wall surface and the bottom of the container with an ash layer. The container is formed by punching a block of natural or synthetic stone into various container shapes such as a box shape, a bowl shape, a confectionery bowl shape, a cylinder shape, a dish shape, a bowl shape, etc. with an open upper surface. The processed stone products have a profound atmosphere and, depending on the size of the container, there is no sense of incongruity even if they are incorporated into a course for kaiseki cuisine such as a ryokan or a restaurant, and used for single or double servings. Is. It can also be used as a substitute for a brazier to make a simple tea-seat oven or hand-warming in winter. However, the thickness of the wall and bottom of the processed stone product is limited to about 1.5 to 2 cm, so it becomes a considerable weight depending on the size of the container. Therefore, it is possible to use ceramics as a container. In the case of porcelain, you can get a large amount of food that suits the cuisine by shape and painting. In addition, since the thickness of the ceramic can be reduced to about 0.5 cm or less, the weight can be significantly reduced compared with the processed stone material.

  There are no limitations on the type of stone used, but the stones that are mined in the south coast of Lake Shinji in Shimane Prefecture are easy to work with tuffy sandstone and have a subdued rust and grayish green color. . Moreover, when this waiting stone is fired at 1100 to 1180 ° C., it changes color to reddish brown due to the iron component contained. This fired visiting stone is also preferable in a calm color. In addition, if you use powder of visiting stones as porcelain, you can make red-black pottery.

  Whether it is a processed stone product or a ceramic, burning the charcoal inside will heat the container. This is similar to the fact that the side portions without ash in the brazier become so hot that they cannot be touched. In the present invention, in order to prevent this, a part or all of the inner wall surface and the bottom are covered with an ash layer as a heat insulating material. However, if you simply cover it with ash, it will collapse. Therefore, in the present invention, in the case of the wall surface, the ash layer is formed by filling ash between the inner wall surface and the wire mesh provided along the inner side of the inner wall surface. If a bottom surface is provided on the wire mesh, it also serves to hold down the ash layer at the bottom of the container. In this case, a stainless steel wire mesh is suitably used if an appropriate shape and dimension can be obtained. The size of the wire mesh is about 0.5 to 3 mm. If it is smaller than this, the ash cannot enter and exit, and it becomes difficult to conceal the wire mesh described later. Conversely, if it is too large, the ash layer may collapse. Preferably it is about 1-2 mm. It is convenient for adjusting the position of the wire mesh if the periphery of the wire mesh is provided with a protrusion or a protruding rod for separating the space from the inner wall surface of the container.

  The thickness of the ash layer is about 1 to 4 cm, preferably about 2 to 3 cm. The same applies to the ash layer at the bottom of the container, but the ash also serves to support and keep charcoal fire in addition to heat insulation. In the case of the present invention, since there is no air intake like the seven wheels, the air necessary for the combustion of charcoal is supplied from above. Therefore, if the position of the charcoal fire is too low compared to the vessel wall surface, combustion will not be successful. Therefore, although it depends on the height of the container, it is necessary to put more ash inside the container and raise the combustion position. Depending on the case, ash may be filled up to substantially the entire eighth container, for example, about the eighth minute. Even in this case, it is preferable to have an ash layer on the inner wall surface. When the ash layer covers the entire inner wall surface, the heat insulation to the wall surface becomes complete, but the ash spills out, so the upper wall surface may be omitted. The wire mesh is exposed inside the ash layer. Therefore, if the ash is further covered on the inner side of the wire mesh, the heat of the charcoal fire is not transmitted to the wire mesh, and in the case of the bottom surface, the charcoal is supported by the ash so that slow combustion is possible. In addition, if the inside of the container is filled with a large amount of ash, the extent to which the ash is covered can be changed and the heating power can be adjusted. In addition, when ash is put on the wire mesh surface of the inner wall surface, the ash is caught on the unevenness of the wire mesh, so that it is less likely to slide down.

  As for the size of the container, the outer side and the outer diameter are about 15 to 40 cm in the case of a stone processed product. Since the inner method and the inner diameter are reduced by about 8 cm at a minimum, the inner method and the inner diameter are preferably 20 cm or more and about 30 cm. If it becomes too large, the weight increases and handling becomes inconvenient. The height of the container is 5 to 20 cm, more preferably about 10 to 15 cm because the inner dimension is 4 cm less than the outer dimension. In the case of ceramics, since the wall thickness is thin, both may be as small as 3 cm.

  Next, the fire extinguishing cover will be described. The cover is not essential, but it is convenient for extinguishing fire when the fire extinguisher is no longer necessary. Moreover, since the fire and ash do not fly when the container is covered, it can be used when moving from place to place. In order to perform fire extinguishing quickly and reliably, it is preferable to provide a stepped portion for fitting the upper edge of the container with the lid. It is convenient for handling if a handle and a knob are provided on the lid. Moreover, in order to improve combustion of charcoal, ash and charcoal fire may be raised more than the height of the container wall surface in the center. It is preferable to form a gap above the inside of the container so that the cover can be covered even in this state. Therefore, the inside of the cover is bulged. The wall thickness of the cover is the same as that of the container. When using a lid, the aforementioned container is the furnace body.

  By the way, when there is no ash layer on the inner wall surface or when the cover is put on for fire extinguishing, there is a concern about the influence of heat on the container and cover. However, in the case of visiting stones, as shown in Fig. 1 and Fig. 2, even when heated to about 500 ° C, the expansion coefficient is as low as about 0.2% and may be damaged due to heating. There is no. In addition, FIG. 1 is a graph of the expansion coefficient of the raw stone of a visit rust stone, and FIG. The measurement conditions were the same for both, and the sample length was 20.51 mm, the heating rate was 10.0 ° C./min, the hold temperature was 1000 ° C., and the hold time was 0 minutes, and the measurement was performed using Simadzu TMA-50H.

Next, the use of the tabletop stove of the present invention will be described. Since the tabletop stove of the present invention does not have an air intake, the heating power is adjusted depending on the extent of charcoal addition or ash covering. In addition, air enters from the opening at the top of the container, so if you use a grilled net for barbecue etc., you can place it directly on the container, but pots etc. are not spaced from the upper edge of the container using virtues Insufficient oxygen may generate CO. The virtues can be placed on the inside ash in the case of larger containers, but they must be placed outside the container in the case of smaller ones. A grill net can be placed on the five virtues and used as a fire. Charcoal is initially ignited and burning, but if you want to continue using it, add charcoal.

  As described above in detail, the present invention forms a box-shaped or bowl-shaped container with a processed stone product or ceramics, and covers a part or all of the inner wall surface and the bottom of the container with an ash layer. .

Therefore, the present invention has the following effects.
(1) Stone processed products that have a profound atmosphere, including ceramic ones, can be incorporated into courses for multi-course meals such as ryokan and restaurants, and can be used for grilled or hot pot dishes. provide. Moreover, there is no sense of incongruity even if it is used as a simple wind furnace in tea ceremony or as a small-sized handbread brazier.
(2) Providing a tabletop stove that uses the compatibility of ash and charcoal, and has a long and durable firepower.
(3) Since an ash layer using a wire mesh is used as a heat insulating material, heat insulation is complete, and ash collapse does not occur. Furthermore, it is easy to cover the ash from the inside of the wire mesh, and the thermal power can be easily adjusted to the extent that the ash hides the charcoal fire.
(4) The fire can be easily and reliably extinguished by covering the lid once use is complete. The fire extinguisher can be used by heating again. In addition, the cover has an effect of preventing sparks and ash from being scattered during movement.
(5) The grill net can be used directly on the container or placed on the virtues as a distant fire, and the pots and bowls can be placed on the virtues and used for various dishes.

  A stone is rolled out into a container shape such as a box shape or a bowl shape to form a container, and the entire inner wall surface and bottom of the container are covered with an ash layer to form a tabletop stove.

  Hereinafter, the device of the present invention will be described in detail with reference to the drawings. FIG. 3 is a cross-sectional view showing an example of the tabletop stove 1 of the present invention. This tabletop stove 1 is a container 2 made by scouring a stone (coming stone rust stone) into a confectionery bowl shape with a diameter of 30 cm and a height of 10 cm, and the entire inner wall surface 2 a and the bottom 2 b are made of ash as a heat insulating material. Coated with layers 3 and 4. The thickness of the container was about 2 cm, and the thickness of the ash layers 3 and 4 was also 2 cm. Therefore, the inner diameter of the container is 22 cm and the inner depth is 6 cm. The ash layer 3 was formed by filling the ash 6 between the wire mesh 5 provided around the inner wall surface 2a and the inner wall surface 2a. The wire mesh 5 is bowl-shaped, and the ash layer 4 is formed by filling ash 6 between the inside of the bottom portion 2 b and the bowl-like wire mesh 5. The ash layers 3 and 4 are formed, for example, by spreading the ash 6 previously placed on the bottom or inner wall surface by pressing it with the wire mesh 5 and adding the shortage later. The metal mesh 5 was made of stainless steel with a 2 mm mesh. Moreover, the upper end was hooked and fixed to the step part 2c of the container.

  Next, ash 7 is additionally filled to a suitable depth (about 3 cm in the middle in the figure). In this state, the charcoal 8 that has been ignited can be used for the ash 7 portion. Then, the grill 9 is placed on the container step 2c, and the food 10 placed thereon is cooked over fire. If the thermal power is too strong, the charcoal 8 is covered with the ash 7, and if the thermal power is weakened, the charcoal 8 is added to advance cooking.

  The tabletop stove 11 shown in FIG. 2 has a portion of the inner wall surface 12a and the bottom 12b of a cylindrical container 12 made of a traditional stone processed to the same dimensions as in the first embodiment, with ash layers 3 and 4 as heat insulating materials. It is coated. The wire mesh 13 of this example is a bottomed cylindrical shape, and is provided with four (two in the figure) protrusions 13a at the lower part thereof, and the distances from the inner wall surface 12a are made equal by these protrusions. Further, the wire mesh 13 reaches only a part (about the eighth) of the inner wall surface 12, and the ash layer 3 does not cover a part of the inner wall surface 12a. And the additional ash 14 is filled to the vicinity of this ash layer 3, and the combustion position of charcoal fire is raised. Therefore, if the grill 9 is placed directly, the food material 10 will be burnt, and if a pan or the like is applied directly, oxygen shortage will occur. Therefore, in the case of this example, this is dealt with by using five virtues 15. Reference numeral 16 in the figure denotes a pan.

FIG. 3 shows a state where the cover 12 is attached to the container 12 of the tabletop stove 11 shown in FIG. In the case of the tabletop stove 11, a lot of additional ash is burned at a position where the charcoal fire is high, so that a gap 18 is required above the inside of the container 12. Therefore, the inside of the cover 17 is swollen. Reference numeral 17a denotes a knob of the cover 17 and 2c denotes a step portion of the container.

It is a graph of the expansion coefficient of the raw rust stone. It is a graph of the expansion coefficient of 1120 degreeC baking products of a visit rust stone. It is sectional drawing which shows an example of the tabletop stove of this invention. (Example 1) It is sectional drawing which shows the other example of the desktop stove of this invention. (Example 2) It is sectional drawing of the state which carried out the cover together on the desktop stove shown in FIG. (Example 2)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Desktop stove 2 Container 2a Inner wall surface 2b Bottom part 3 Ash layer 4 Ash layer 5 Wire mesh 11 Desktop cooker 12 Container 12a Inner wall surface 13 Wire mesh 13a Protrusion

Claims (7)

  It is used for cooking such as grilling using charcoal fire, and forms a box-shaped or bowl-shaped container with processed stone products and ceramics, and covers part or all of the inner wall surface and the bottom of the container with an ash layer A tabletop stove characterized by   It is used for cooking such as grilling using charcoal fire, and forms a box-shaped or bowl-shaped container with processed stone products and ceramics, and covers part or all of the inner wall surface and the bottom of the container with an ash layer Tabletop stove characterized by comprising a fired main body and a fire extinguishing cover.   The tabletop stove according to claim 2, wherein the lid is bulged inside to form a gap above the inside of the container.   The tabletop stove according to claim 1 or 2, wherein the ash layer covering the inner wall surface of the container is formed by filling ash between a wire mesh and an inner wall surface provided around the inner wall surface.   The tabletop stove according to claim 4, wherein the circumference of the wire mesh is provided with a bottom surface.   The tabletop stove according to claim 4 or 5, wherein the circumferentially arranged wire mesh is provided with a protrusion and a protruding rod for isolating the space from the inner wall surface of the container.   The tabletop stove according to claim 1 or 2, wherein the ash layer is filled to fill the container.

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